The story

On a historic night for America, Barack Obama secured the Democratic Party's nomination for president and emerged for the first time on stage in Denver with running mate Sen. Joe Biden.

Obama on Wednesday officially became the first African American to lead a major party ticket.

Delegates cried and cheered as former rival Sen. Hillary Clinton motioned to cut the roll call vote short, saying "Let's declare together with one voice right here, right now, that Barack Obama is our candidate and he will be our president." Read full article »